rough diamond, crystal in an allotropic form of carbon, uncut gemstone, concept of luxury or wealth
Quartz Crystal
Rock Crystal.natural gemstone.Natural Still not cut
Ammonium perchlorate, a chemical compound, is a colorless crystalline solid. It is the salt of ammonia and perchloric acid, it is a powerful oxidant.
Macro shot of a berg crystal on a reflective surface
Quartz is the second most abundant mineral on earth. It has a trigonal crystalline structure composed of silica tetrahedrons, where each oxygen is divided between two tetrahedrons.